[INFO] cloning repository https://github.com/somduttasinha/tcp-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/somduttasinha/tcp-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomduttasinha%2Ftcp-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomduttasinha%2Ftcp-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd0d28a95bbff9eecbd4b4210da187a292fa1a0f
[INFO] checking somduttasinha/tcp-rs against try#47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 for pr-149058
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomduttasinha%2Ftcp-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/somduttasinha/tcp-rs
[INFO] finished tweaking git repo https://github.com/somduttasinha/tcp-rs
[INFO] tweaked toml for git repo https://github.com/somduttasinha/tcp-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/somduttasinha/tcp-rs on toolchain 47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/somduttasinha/tcp-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking somduttasinha/tcp-rs against try#47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 for pr-149058
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomduttasinha%2Ftcp-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/somduttasinha/tcp-rs
[INFO] finished tweaking git repo https://github.com/somduttasinha/tcp-rs
[INFO] tweaked toml for git repo https://github.com/somduttasinha/tcp-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/somduttasinha/tcp-rs on toolchain 47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/somduttasinha/tcp-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scoped-tls v0.1.2
[INFO] [stderr]   Downloaded smallvec v0.6.14
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.4
[INFO] [stderr]   Downloaded tun-tap v0.1.4
[INFO] [stderr]   Downloaded cc v1.2.16
[INFO] [stderr]   Downloaded parking_lot_core v0.6.3
[INFO] [stderr]   Downloaded etherparse v0.8.3
[INFO] [stderr]   Downloaded tokio-core v0.1.18
[INFO] [stderr]   Downloaded futures v0.1.31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33b6ad651ced8b51cbc4ca877337a829ed4d30d7b6391d497ad5beba143d0dd5
[INFO] running `Command { std: "docker" "start" "-a" "33b6ad651ced8b51cbc4ca877337a829ed4d30d7b6391d497ad5beba143d0dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33b6ad651ced8b51cbc4ca877337a829ed4d30d7b6391d497ad5beba143d0dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33b6ad651ced8b51cbc4ca877337a829ed4d30d7b6391d497ad5beba143d0dd5", kill_on_drop: false }`
[INFO] [stdout] 33b6ad651ced8b51cbc4ca877337a829ed4d30d7b6391d497ad5beba143d0dd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e6f71d55b209805dbb9f50aeb0475021a188fc1e31e8ad26d218911f235dd7f
[INFO] running `Command { std: "docker" "start" "-a" "6e6f71d55b209805dbb9f50aeb0475021a188fc1e31e8ad26d218911f235dd7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking log v0.4.26
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking etherparse v0.8.3
[INFO] [stderr]    Compiling cc v1.2.16
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tun-tap v0.1.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stderr]     Checking tcp-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `nic`
[INFO] [stdout]   --> src/tcp.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         nic: &mut tun_tap::Iface,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_nic`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]   --> src/tcp.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         iph: Ipv4HeaderSlice<'a>,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/tcp.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         data: &'a [u8],
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/tcp.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         data: &'a [u8],
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nic`
[INFO] [stdout]   --> src/tcp.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         nic: &mut tun_tap::Iface,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_nic`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]   --> src/tcp.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         iph: Ipv4HeaderSlice<'a>,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/tcp.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         data: &'a [u8],
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/tcp.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         data: &'a [u8],
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IPV4_PROTO` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const IPV4_PROTO: u16 = 0x800;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Closed`, `Listen`, and `Estab` are never constructed
[INFO] [stdout]  --> src/tcp.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum State {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 6 |     Closed,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     Listen,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 8 |     SynRcvd,
[INFO] [stdout] 9 |     Estab,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `up`, `wl1`, and `wl2` are never read
[INFO] [stdout]   --> src/tcp.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct SendSequenceSpace {
[INFO] [stdout]    |        ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     up: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     wl1: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     wl2: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `wnd`, `up`, and `irs` are never read
[INFO] [stdout]   --> src/tcp.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | struct RecvSequenceSpace {
[INFO] [stdout]    |        ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 74 |     wnd: u16,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     up: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     irs: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IPV4_PROTO` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const IPV4_PROTO: u16 = 0x800;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Closed`, `Listen`, and `Estab` are never constructed
[INFO] [stdout]  --> src/tcp.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum State {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 6 |     Closed,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     Listen,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 8 |     SynRcvd,
[INFO] [stdout] 9 |     Estab,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `up`, `wl1`, and `wl2` are never read
[INFO] [stdout]   --> src/tcp.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct SendSequenceSpace {
[INFO] [stdout]    |        ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     up: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     wl1: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     wl2: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `wnd`, `up`, and `irs` are never read
[INFO] [stdout]   --> src/tcp.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | struct RecvSequenceSpace {
[INFO] [stdout]    |        ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 74 |     wnd: u16,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     up: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     irs: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:185:9
[INFO] [stdout]     |
[INFO] [stdout] 185 |         c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 because we have no data
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let _ = c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 because we have no data
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:185:9
[INFO] [stdout]     |
[INFO] [stdout] 185 |         c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 because we have no data
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let _ = c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 because we have no data
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `Command { std: "docker" "inspect" "6e6f71d55b209805dbb9f50aeb0475021a188fc1e31e8ad26d218911f235dd7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e6f71d55b209805dbb9f50aeb0475021a188fc1e31e8ad26d218911f235dd7f", kill_on_drop: false }`
[INFO] [stdout] 6e6f71d55b209805dbb9f50aeb0475021a188fc1e31e8ad26d218911f235dd7f
